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CONSTRUCTION <br />Selge Construction South Bend GESC 2019 <br />• Gross cost of solar panel system: The gross cost of installing solar on your building is dependent on <br />the size of the system you select and the equipment that makes up that system. <br />• Value of up -front financial incentives: Tax breaks and rebates can dramatically reduce the cost of <br />going solar. The federal investment tax credit allows you to deduct 30% of the cost of your system <br />from your taxes, and additional state and local financial incentives may also be available in your area. <br />• Average monthly electricity use: The amount of electricity that you consume monthly is an indicator <br />of both the size of system you need and the amount of electricity that you can offset each month <br />with solar. The higher your electricity bills are, the shorter your estimated payback period will be, as <br />you can reduce or eliminate this bill as soon as your panels are operational. <br />• Estimated electricity generation: While we will try to provide you with a system that matches your <br />electricity consumption, practical constraints like the size of your roof and seasonal weather variation <br />may impact the amount of electricity that you can produce on -site. <br />• Additional financial incentives: In some areas of the country, you may be able to earn additional <br />incentives in the form of solar renewable energy certificates (SRECs) or other utility programs that <br />give you a per kilowatt-hour credit for the electricity that your solar panels generate. Depending on <br />the size of your solar energy system, these can represent a significant monetary benefit. <br />Take the following steps to calculate your payback period: <br />• Determine combined costs. Subtract the value of up -front incentives and rebates from the gross cost <br />of your solar panel system. <br />• Determine annual benefits. Sum up your annual financial benefits, including avoided electricity costs <br />and any additional incentives. <br />• Divide your combined costs by your annual financial benefits. The result will be the number of years <br />it will take for you to achieve payback. Every month of savings after that point in time should be <br />counted as a financial gain! <br />For our specific project, we will calculate the LCOE & ROI on just the solar and on the entire project <br />combined. (source:x;gl..„I�•�sra�°:j) <br />Technology selection will be based on which product provides the best LCOE/ROI and the best warranty at <br />the same time. In every solar system, there are 3 main products. Given our background and familiarity with <br />solar technology, we would recommend a combination of the following: <br />Framed Mono/Poly Silicon Solar panels. <br />o Framed silicon panels have the longest track record in the world and provide the most <br />durable product over the long run. Other types of panels, CIGS, a -Si, or CdTe are less <br />efficient, require more maintenance, and/or degrade faster. <br />o We will consider a bifacial silicon solar panel that could potentially produce more electricity <br />from ambient light reflected off the roof. <br />600V-I000V String Inverters with Arc Flash protection. <br />o 1500V will not be an option for the roof. According to building codes, the system must also <br />have arc flash protection given that it is on the roof. <br />Direct Attached solar mounting product (no ballast). <br />24 <br />